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What causes laptop batteries to overheat?
computer.howstuffworks.com/dell-battery-fire.htm
Dell and the United States Consumer Product Safety Commission recently announced that 4.1 million laptop batteries could short-circuit under the right conditions, causing an explosion or a fire. Learn how.
How Calculators Work
electronics.howstuffworks.com/gadgets/other-gadgets/calculator.htm
Calculators may show up anywhere in our lives that numbers do -- from calculus class to restaurants. See how calculators work.
How Much Do You Really Know About the World?
play.howstuffworks.com/quiz/how-much-do-you-really-know-about-the-world
Earth is the only planet in our solar system that isn't named after a mythological god or goddess. It's not flat, but it's not a sphere either. We only have one Earth. What do you know about the planet?
Can you ace this 5th grade math quiz?
play.howstuffworks.com/quiz/can-you-ace-this-5th-grade-math-quiz
For must of us, 5th grade was a long time ago. Mental math gets fuzzy and how to solve for X is a distant memory. But the concepts are pretty basic ... right? See if you're a math buff with our 5th grade math quiz!
Can You Pass This Math IQ Quiz?
play.howstuffworks.com/quiz/can-you-pass-this-math-iq-quiz
How much of your math skills have you retained since your school days? Are you still acute, or have you become obtuse? Find out now with our quiz!
Chakra Colors: The Key to Unlocking Your Spiritual Potential
science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/chakra-colors.htm
Are you in tune with your chakra colors? Explore their meanings and learn how to align your energy for a more balanced and fulfilling life.
311 Angel Number: Meaning, Symbolism, and Guidance
science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/311-angel-number.htm
Unlock the mysteries of the 311 angel number! This unique sequence carries a special message from your angels. Find out what it means for your relationships, career, and spiritual growth.
How does a NASCAR driver communicate with the pit crew?
auto.howstuffworks.com/auto-racing/nascar/jobs/nascar-driver-communicate.htm
NASCAR race cars are getting more complex every year, and so are NASCAR driver communications systems. Learn how NASCAR driver communications have advanced.
Just How Many Galaxies Are in the Universe?
science.howstuffworks.com/dictionary/astronomy-terms/galaxy.htm
Galaxies are large systems of stars, gas, dust and dark matter that orbits a center and is bound by gravity. Learn about the characteristics of galaxies.
How Biometrics Works
science.howstuffworks.com/biometrics.htm
With the help of Q, James Bond can breeze through a security system that requires the villain's irises, voice and handprint. Biometrics isn't just for the movies. Real-life businesses and governments are using it. Check it out.